Glass-banding machine



www 2 ..9 w www h. Aw, s L UQ E e h S w l m2 Rum EM 5 Rm2 T. .Nu BMA d16%@ Al L GF 3 2 @u nu a e El V v@ 5, E.. @REER GLASS BANDING MACHINEFiled Aug. 25, 1921 5 She-aschcae 3 gamw ,67 my -ldatented Non 13, lgd..

unrTen sTaTas Tanna raTeuT 'orrrcaof GLASS-BANDJING MACHINE,

- Application ille-6l .august 25, N21i. Serial ltoJlaa.

To all whom ct may concern: i

Be it known that l, JAMES Born Ganan, a citizen of the United States,and a resident of Pittsburgh, in the count of Allegheny and State ofPennsylvania, ave invented a new and useful Improvement in Glass-Banding Machines, of which the following is a specilication.

rlhis invention relates to a glass cutting vmachine and moreparticularly to the type known as handers, being used to cut bands orrings on drinking glasses, tumhlers Iand other glassware similarlyshaped.

rllhe object ot the invention is to provide a machine ot theclassreferred to which is strong andv durable, which requires little ateprovide a band cutting machine which requires no attention whatever fromthe operator except the placing of the blanks to be cut upon themachineand the removal ot the linished article alter the cutting has beencompleted.

llt is also a further special object to provide such a machine which iscapable ot cutting various designs ol bandsby the mere substitution ofsuitable cutting elements, the entire cutter being removable as a unitso that a change from one design to another ma be made in a minimumperiod of time, which cutter may be accurately adjusted while removedtrom the machine, thus preventing a shutting down or the whole machinetor such urpose.

@ther specia obJects ot the invention are to provide a bander having aplurality ol independently operating cutter carrying arms whichautomatically accommodate themselves to irregularities in the articlebeing cut and which may be used eithersingly or in multipla and toprovide means on the chuck cooperating with the arms so that adjustmentmay be made .to cause the arms of the several chuclrs, whether on thesame machine or on a similar machine, to contact the article being cutat corresponding points.

llt is still a further object to provide a bander which is continuousand smooth in operation, that is, in which an article is beappear tromthe following description taken in connection with .the appended claims.

i Like reference characters are used to. denote similar parts throughoutthe several views orp the drawin in which Fig: l is a plan view ot' amachme showing an embodiment ot my invention; llig. 2 a front eleva1tion with parts in section ot the machine illustrated in Fig. l; llig. 3a transverse vertical sectional view taken' on the line lll-lll of Fig.l; Fig. l a vertical transverse sectional view taken on the line lV-lllof Fig. l; and Fig. 5 a transverse sectional view taken on the line V-lfot Fia'. 4l.

lhe embodiment ot the invention illustrated comprises a base plate lnear the center ot which are located the bearing standards 2, 2 anddisposed at its sides are the bearing standards 3, 3 and 4:, ll. A camshatt 5 is journalled in the standards 2, 2', and supported by the sidestandards 3., 3 and 4l, 4l are the respective chuck shatts d and 6 towhich and 7..

The chucks and chuck shafts are identical in construction, being merelyoppositely disposed with respect to the cam shalt 5 and only one sha-ttneed bedescribed in detail. No novelty is claimed in this case-tor theparticular `chuck shown, except the adjusting means for cooperating withthe cutter carrying arms, the chucks being of the expanding andcontracting type so as to securely grip an ordinary drinlnng glass ortumbler 8 when in its expanded condition, but allow removal of the glassor tumbler when the chuck is contracted. llhe means tor actuating thechucks consists of a rod 9 which entends through the chuck shaft and isbiased toward its gripping position by the spring l0 and is providedwith an adjusting nut and contact piece l1 at its outer end..

A rocking cross head or beam 1.2 is pivs same, each end of the member l2being torcedl outwardly and held out ot contact with one contact piecell to expand the chuclr while the opposite end is torced inwardly tocontact the remaining one and contract its chuck. Suchmovement occursduring each revolution ot the cam shalt being effected the cam l5 on camdisk i6, said cam catenelare attached the chucks l inventa i ingthroughout substantially half the circumference of the disk and abuttingthe antilid friction rollers 17 and 18 mounted on the beam 12.

19 is a clutch collar fixed to the shaft 6' and carries the clutch tooth20 which coopcrates with clutch tooth 21 attached'to the sheave 22loosely mounted and having free longitudinal movement upon the shaft,and

tending to move in a direction to disengage the vclutchteeth under theinfluence of the coil spring 23. Abutting the. boss of the sheave 22 isa collar 24 also loosely mounted and having free longitudinal movementupon the chuck shaft, and which is provided with an integral cam tooth'25 cooperating with the cam slot 26 formed in the bushing of bearings 3and 4. It is obvious that when the tooth 25 registers with the slot 26as shown in the lower portion of Fig. 1, the spring 23 will separate theclutch teeth 20 and 21 in which event turning of the sheave 22 will notrotate the chuck shaft, but when the collar 24 is moved to the positionshown in the upper part of Fig. 1 the clutch members will be engaged andmovement of the sheave will be transmitted to its shaft. The means foralternately shifting the said iclutches comprises a gear wheel 27 fixedto cam shaft 5 and which isdriven from the sheave 28 journalled upon thestub shaft 29, the hub of the shaft being provided with a pinion v30meshing with gear 27. Pivotally mounted upon rthe stub shaft 2Q betweenpinion 30 and the standard 2 1s a yoke 31 which is adapted to be shiftedto either side of the standard 2 by a pin 32 projecting from the face ofgear 27 which alternatelzy contacts the arms 31' and 31 of the yoke asclearlyl shown in Fig. 4. An arm 33 is pivoted to the upper end ofstandard 2 and has a pin and slot connection with the yoke as indicatedat 34. A spring 35 is connected at one end tothe arm 33 and at its otherend to a link 36, the opposite ends of which are pivotally attached tothe collars 24 so as to move the same with a snap action whenever thearm 33 is moved slightly beyond the vertical plane of standard 2 byreason of the pin 33 contacting x with the arms of the yoke.

Attached to the forward end of the frame 1 and midway between the chucks7 and 7 is a standard 37 in which is mounted the rod 38 having a head 39and pivoted in the head 39 at`40 are a plurality of cutter carrying arms41 which overhang the chucks 7 and 7 Each of the arms 41 is entirelyindependent of the other except that they have av common pivotal pointand perform like functions. The several arms lie adjacent one another,as clearly` shown in Fig. 1, and each carries a suitable cutting element42. This independent pivoting permits the swinging of e made.

the arms into or out of cutting position, thus permitting the use of buta, single arm or a other. These cutters may be made of anyl suitablematerial, being preferably formed of an abrading compound which willreadily cut the ljglass of which the -tumblers 8 are he lower, cuttingedges of the cutters are shaped to correspond to the outer periphery ofthey tumblers to be out, as clearlyshown in Fig. 2, and may have asingle cutting edgel so as to form but a single groove or maybe soconstructed as to cut a plurality of grooves. lin this way, by varyingthe forms of cutters and their arrangement, a number of diderent designsmay be cut, and since the post 38 and the arms 41, together with cutters42, constitute a cutting Y. unit, a number of units arranged to cutvarious designs may be provided so that by merely substituting a newvcutting unit, the operator is enabled to change from one design toanother without disturbing the remaining portions of the machine orcausing titi it to be out of operation more than the very short periodrequired to make the substitution.

Each of 'the arms 41 is entirely independent of the other, as beforenoted, and is biased into cutting position, not only by its own weight,-but by the tension of coil springs45 attached at one end to the pins 46projecting from arms 41, and at the other to similar pins 47 in the baseplate 1. Such mounting permits the cutters to accommodate themselves tothe surface being cut, regardless of its irregularities, it being wellknown that tumblers are neither uniform in vcross section, in outline orin thickness. By

mounting the parts in the manner described, it is found/that uniformbands are cut regardless of the irregularities noted.

Each chuck is provided with an adjusting limiting screw 47 whichcontacts the'bottom of the`article being cut at its center, as clearlyshown in F ig. 1. By properly' ad,- justing these screws, the bands willbe cut at corresponding portions regardless of the chuck on whichsaid-article is placed, and an article maybe changed from one chuck toanother of the same or diderent machines with the assurance that thecutters will always contact the article at identical points. Should aband be but partly cut on one chuck, the cutting may be completed byreplacing thel article on any .chuck vwithout nez-farce tear that thecutters will not contact the same at the proper point.

lournalled in the outer ends 48 and t8 'of a biturcated bracket 4K9 area pair of short shafts, to the opposite ends of which are attachedlingers 50, 51, the former bearing against the cam 52 mounted on shaft 5and the latter lying beneath the arms t1 and adapted to raise the sameto stop the cuttin actionl after the band has been formed.

For the purpose ot moistening the tumblers 8 so that-the abrasive actionof the cutters 42is enhanced and also for the purlll pose of removingall particles resulting trom the cutting operation a moistening deviceis provided tor each chuck shaft. lt cony sists ot a basket 53containing an absorbent material such as a sponge 5t adapted to contactthftumbler 8 when in its raised position. The basket 53 is attached toone end -vot a short lever pivoted at 55 to the edge of a vessel 56tilled with water and supported upon the base plate 1, said leverbeingconnected at itsl other end to a bell crank 57 by the link`58, the bellcrank being pivoted to a block 57a bolted to the base plate. rlhe arm 57of the bell crank extends upwardly and is provided with a cutawayportion 58 spring lill many purposes are found to be preferable.

lln operation, a blank tumbler is placed upon the chuck 7 shown at theright ot Fig. 2, the said chuck being contracted to receive the same dueto the forcing ot its operating rod 9 inwardly by the end ld oit rockingbe l2. At this time the sheave 22 is disconnected from chuck shaft 6 andthe cams upon the cam shaft are in position to cause nger 51 to litt thecutter carrying arms tl overhanging chuck 7 to their raised position andto lower the sponge basket into the water lvessel to moisten .the same.While the parts associated with chuck 7 are in the positions describedand, as clearly illustrated in Fig. 2, the corresponding partsassociated with chuck. 7 are dll - to rotate the chuck shaft 6 in theiractive ositions, the rod 9 being projected by spring l to expand thechuck so as to grip the blank 8,the moistening and l cutting devicesbeing in contact therewith and theA clutch 20--21 bein engaged so associated with shaft t and chuck 7' remain sprocket' wheels and chainsmay be use and ltor The parts asl in their active cutting positionsduring substantially a half revolution of cam shaft at which time thecam rocks the beam 12 to release the chuck rod 9 of shaft 6 and torcethat ot shaft 6' inwardly to contract chuck 7. lust prior to suchrelease 'of chuck 7 the pin 32 on gear 27 contacts the arm 3l of yoke3l. to shift link 36 and collars 24 which disconnects the clutch 20 2lof shaft 6 and connects that of shaft. 6, and simultaneously with theactuation of the clutches cam 59 actuates the bell crank lever 57 tolower the moistening device out of contact with the article being cut,and cam 52 through the connected fingers 50 and 5l litts the arms andtheir attached cutters to the position oorrespondin to that illustratedin Fig. 2 in connection with chuck 7. ln moving the several devices intocutting position, the'chuck is expanded so as to grip the blank securelyjust prior to the lowering ot the -cutting arms and engagement ot theclutch.

'llheY cams are so arranged that when the devices associated with onechuck are thrown into cutting position as described, the devicesassociated with the other chuck are thrown out of action. lin this way,the finished article may be removed and. the new blank Aplaced inposition on one chuck while the cutting operation is `being ertormed onthe other, and since the chuc s are al ternately actuated, the one beingthrown into operation atthe same time the other is thrown out, thecutting process is a continuous one in which the load upon the machineis constant since one glass is being cut at all times. `Y"llhis assuresa very smooth running of the machine, tree trom jerks and tion, whichfrequently results in machines in which the load `varies from time totime llt is also notedtha't the combined weight ot the arms d1, togetherwith the tension oit springs d5, the abrasive quality ot the cutters andthe speed orp rotation ot the chucks are so proportioned that thetimerequired to cut a hnished band upon a blank allows just about sucienttime Jfor the operator to remove a hnished article and substitute ablank therefor, thus resulting in a highly etiicient operation tor thepurpose desired.

ll claim:

l. A cutting machine comprising an intermittently rotating chuck adaptedto receive the article to be cut, means for actu-4 ating the same, acutter carrying arm mounted adjacent said chuck, a cutter thereon, saidcutter arm being pivoted to a supporting head, said head and cutter armbe-V ing :treel removable trom the machine as a unit, an automatic meansfor moving the ltlll VSpasmodic `lluctuations in speed ot operaliticutter into and ont ot engagementwith the said article,

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2. A Cutting machine comprising an intermittently rotating chuck adaptedto receive the article to'be cut, means for actuatingthe same, aplurality of independently Vmovable cutter arms mounted adjacent saidchuck, a cutter fixed to each of said arms,

said vcutter arms being pivoted to a single sup orting head, said headand 4arms being free yremovable from and replaceable on the machine as aunit, and automatic means for moving the cutters into and out ofengagement with the said article.

3. A cutting machine comprising a frame, a pair of chuck shafts mountedtherein, chucks on said shafts adapted to receive an article to be cut,means for driving the chuck shafts, a cam shaft also mounted in i, theframe, clutches between said driving means and chuck shafts, cuttercarrying arms mounted adjacent the chucks, cutters thereon, anadjustable stop on the chuck for positioning the article being cut withrespect to said arms, and cams on said cam shaft for actuating the saidclutches and arms.

5. A cutting machine comprising an intermittently rotating chuck adaptedto re'- ceive the article to be cut, means for actuating the same, astandard disposed adjacent the chuck, a supporting head removablymounted in the standard, a plurality of inl. de endently movable cutterarms pivoted to sald head and overhanging the chuck whereby to be urgedtheretowards under the inHuence ofgravit a cutter iixed to each of saidarms, sald head and cutter arms being removable from the machine as aunit, and automatic means for moving the cutters into and out ofengagement with the said article.

6. A bander comprisingl a frame, a cam shaft 'mounted` in the frame,chuck shafts mounted on opposite sides of said cam shaft having chucksthereon adapted to hold an article to be cut, driving means for saidshafts, a clutch on each of the chuck shafts, means on the cam shaft foralternately connecting and disconnecting the said clutches, means foralternately actuating the chucks, a pivoted cutter arm carrying a cutteradj acent each of the chucks, and means for moving the said arms intoand out of contact with the article on the said chucks.

7. A cutting machine comprising a frame, a cam shaft mounted in theframe, chuck shafts mounted on opposite sides of said cam shaft havingchucks thereon 'adapted to,

hold an article to be cut, driving means for said shafts, a clutch oneach of the chuck shafts, means on the cam shaft for alterformed of aseries of pivotally supported armscarrying the cutters 'mounted in theframe adjacent the chucks and overhanging the chucks, and means formoving the arms into and out o'f engagement with the article on the saidchucks.

8. A band forming machine comprisinga frame, a cam shaft journalled inthe frame, chuck shafts at opposite sides of the cam shaft and havingchucks at one end adapted to hold the article being cut, the operatingrods of which project from the opposite ends thereof, a pivoted crosshead the ends of which abut the operating rods to alternately actuatethe same, driving means for the said shafts, clutches interposed betweenthe driving means and chuck shafts, a standard on the frame disposedbetween the chucks, a cutting device removably mounted in the standardand formed of a plurality of independent cutter bearing arms overhangingthe chucks and lbiased theretowards, and means on the cam shaft foralternately actuating the said operating rods, the clutches and the saidcutter bearing arms of the respective chuck shafts.

' 9. A cutting machine comprising a frame, a cam shaft journalled in theframe, chuck shafts at opposite sides of the cam shaft and having chucksat one end adapted to hold the article being cut, the operating rods ofwhich project from the opposite ends thereof, a pivoted cross head theends of which abut the operating rods to alternately actuate the same,driving means for vthe said shafts, 4clutches interposed between thedriving means and chuck shafts, astandard on the frame -disposed betweenthe chucks, a cutting device removably mounted v in the standard andformed of a plurality -of independently pivoted cutter bearing armsoverhanging the chucks and biased ftheretowards, means adapted to bemoved into contact with the ,article being cut to moisten the same andmeans on the cam shaft for alternatelyactuating the said operating rods,the clutchesLthe cutter bearing arms and the said moistening means ofthe respective chuck shafts. j llln testimony whereof, I sign my name;JAMES BOYD GREER. Witness:

EDWIN U. JOHNS.

